This tool is based on the common demining probe or "prodder".
Many hundreds are currently in use.

With
a 40cm long blade in front of the handle, the shaft is
malleable stainless steel that has been reduced in one plane.
This makes the tool blade almost oval in cross-section.
A demining research group at MIT observed that ground friction could
be significantly reduced using a probe with this cross-section and
twisting it while inserting it.

Since
a deminer is usually required to probe to a depth which ground-friction
denies, any reduction in friction is most welcome. If the tool
is rotated through 360º
when inserted as far as possible, it can then be pushed further
without extra force. How much further it can then be pushed
depends entirely on the composition of the soil.

The
40cm blade length obliges a kneeling/squatting deminer to approach
the target area from a low angle. The tool is designed to be
used with a steady forward push by one hand in soft ground.
The forward movement is followed by a rotating action to reduce
friction, then a further forward push moves the tip deeper into
the soil.

The
handle is made of non-shattering polyethylene. The user’s hand
is protected by a pliant and washable ballistic aramid hand-guard.
The guard does not prevent the use of a second hand to hold
the blade, but is intended to discourage it. It weighs around
0.4Kg (12oz).

The
tool stayed in one piece when placed on top of a mine in tests.
The blade curved gracefully. Variations
have been used in more than 25 actual accidents, and have always
bent as designed.

As well as having been supplied to military users in South America and Europe, this tool is known to have been used in Vietnam, Angola, Mozambique, Sri Lanka, Tajikistan, Afghanistan, Lebanon and Sudan.